14L Motor Grader TA2 Technical Inspection{0372, 1000, 7000, 753T, 7565} Caterpillar

Motor Grader:

14L (S/N: B941-UP)

Introduction

Inspections are the most basic form of condition monitoring. Inspections are easy to do and surprisingly effective at helping you spot equipment health issues. Proactive monitoring and analysis of equipment information will allow Dealers to intervene effectively before problems occur.

Note: Before adjusting product settings to comply with listed baseline TA2 values, consult SIS for the latest specification values.

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Electrical System

Table 1

Status (1)	Description	Specification	Actual	Comments
	Inspect Battery Cables	Cables between the battery, the starter, and the engine ground must be the correct size. Wires and cables must be free of corrosion. Wires and cables must have cable support clamps in order to prevent stress on battery connections (terminals).
	Battery Test	12.4 VDC or more		Refer to Special Instruction, SEHS7633, "Battery Test Procedure".
	Charging System Test	28 ± 1 V		Refer to Special Instruction, REHS0354, "Charging System Troubleshooting".
	Electric Starting System Test			Refer to System Operation/Testing and Adjusting, SENR9830

( 1 )

N = Normal, M = Monitor, A = Action

Engine

Cooling System

Table 2

Status (1)	Description	Specification	Actual	Comments
	Radiator Pressure Relief (Radiator Cap) (2)
	Freezing Point of Engine Coolant
	Conditioner Test of Engine Coolant
	Belt Tension			Auto Adjust Belt Tensioner
	Difference between the Upper and Lower Radiator Tank Temperatures

( 1 )	N = Normal, M = Monitor, A = Action
( 2 )	Test for the pressure that is listed on the cap.

Fuel System

Table 3

Status (1)	Description	Specification	Actual	Comments
	Fuel Pressure	558 ± 186 kPa (81 ± 27 psi)

( 1 )

N = Normal, M = Monitor, A = Action

Lubrication System

Table 4

Status (1)	Description	Specification	Actual	Comments
	Engine Oil Pressure at Low Idle	255 + 345 kPa - 193 kPa (37 + 50 psi - 28 psi)
	Engine Oil Pressure at Full Load or at (2200 ± 10 RPM)	3318 + 269 kPa - 152 kPa (48 + 39 psi - 22 psi)

( 1 )

N = Normal, M = Monitor, A = Action

Basic Engine

Table 5

Status (1)	Description	Specification	Actual	Comments
	Engine Speed at Low Idle	1000 ± 10 RPM
	Engine Speed at High Idle	2310 ± 10 RPM
	Cylinder Cutout Test	-
	Engine Crankcase Blowby Pressure	-

( 1 )

N = Normal, M = Monitor, A = Action

Air Inlet and Exhaust System

Table 6

Status (1)	Description	Specification	Actual	Comments
	Cylinder # 1 Exhaust Temperature (2)	-
	Cylinder # 2 Exhaust Temperature (2)	-
	Cylinder # 3 Exhaust Temperature (2)	-
	Cylinder # 4 Exhaust Temperature (2)	-
	Cylinder # 5 Exhaust Temperature (2)	-
	Cylinder # 6 Exhaust Temperature (2)	-

( 1 )	N = Normal, M = Monitor, A = Action
( 2 )	Compare the exhaust temperature variance at each exhaust port.

Performance Checks

Brake Performance Checks

ReferenceRefer to Operation and Maintenance Manual, SEBU9261, "Braking System - Test" for more detail on the following test.

Table 7

Status (1)	Description	Perform	Comments
	Service Brake Test
	Parking Brake Test

( 1 )

N = Normal, M = Monitor, A = Action

Secondary Steering Performance Checks

ReferenceRefer to Testing and Adjusting, UENR4649 for more detail on the following tests.

Table 8

Status (1)	Description	Specification	Actual	Comments
	Magnetic Switch (Secondary Steering Relay) - Test	Perform test
	Relief Valve (Secondary Steering) - Test	17225 kPa (2500 psi)
	Control Manifold (Steering Backup) - Test (Steer Left)	Perform test
	Control Manifold (Steering Backup) - Test (Steer to Center)	Perform test
	Control Manifold (Steering Backup) - Test (Steer Right)	Perform test

( 1 )

N = Normal, M = Monitor, A = Action

Hydraulic Performance Checks

ReferenceRefer to Testing and Adjusting, UENR4646, "Cylinder Cycle Time - Check" for more detail on the following tests.

Table 9

Status (1)	Description	Specification	Actual	Comments
	Blade Lift - Rod In (2)	3.0 ± 1.0
	Blade Lift - Rod Out (2)	3.0 ± 1.0
	Centershift - Rod In (3)	6.0 ± 2.0
	Centershift - Rod Out (3)	7.0 ± 2.0
	Wheel Lean - Rod In (3)	2.0 ± 0.5
	Wheel Lean - Rod Out (3)	2.5 ± 1.0
	Blade Tip - Rod In (3)	3.0 ± 1.0
	Blade Tip - Rod Out (3)	3.0 ± 1.0
	Sideshift - Rod In (3)	9.5 ± 2.5
	Sideshift - Rod Out (3)	11.0 ± 3.0
	Scarifier (If Equipped) - Rod In (2)	2.5 ± 1.0
	Scarifier (If Equipped) - Rod Out (2)	3.0 ± 1.0
	Ripper (If Equipped) - Rod In (2)	3.0 ± 1.0
	Ripper (If Equipped) - Rod Out (2)	3.5 ± 1.5
	Articulation - Rod In (3) (4)	3.5 ± 1.5
	Articulation - Rod Out (3) (4)	3.5 ± 1.5
	Blade Circle - 1/4 rotation	13.5 ± 3.5

( 1 )	N = Normal, M = Monitor, A = Action
( 2 )	Cycle times are for a "running distance" of 305 mm (12 inch).
( 3 )	Cycle time is through full travel.
( 4 )	When you check the cycle times for these cylinders, operate the machine at high idle and in the FIRST SPEED position. The differential must be unlocked.

Cylinder Drift Tests

ReferenceRefer to Testing and Adjusting, UENR4646, "Hydraulic Cylinder Drift - Check" for more detail on the following tests.

Table 10

Status (1)	Description	Specification		Actual	Comments
N/A	Implement	Drift Time	Drift Distance	N/A	N/A
	Blade Lift	3 minutes	15 mm (0.59 inch)
	Blade Tip	3 minutes	7 mm (0.28 inch)
	Ripper	3 minutes	4 mm (0.16 inch)
	Wheel Lean	3 minutes	4 mm (0.16 inch)
	Scarifier	3 minutes	8 mm (0.32 inch)
	Snow Wing Lift	3 minutes	12 mm (0.48 inch)
	Snow Wing Tilt	3 minutes	5 mm (0.20 inch)
	Snow Plow Lift	3 minutes	5 mm (0.20 inch)

( 1 )

N = Normal, M = Monitor, A = Action

Hydraulic and Steering System

Hydraulic System Pressure

ReferenceRefer to Testing and Adjusting, UENR4646, "Hydraulic System Pressure - Test and Adjust" for more detail on the following tests.

Table 11

Status (1)	Description	Specification	Actual	Comments
	Hydraulic System Pressure	27600 ± 400 kPa (4000 ± 60 psi) @ 4.0 L/min (1.10 US gpm) flow rate

( 1 )

N = Normal, M = Monitor, A = Action

Pilot Pressure

ReferenceRefer to Testing and Adjusting, UENR4646, "Pilot Pressure - Test and Adjust" for more detail on the following tests.

Table 12

Status (1)	Description	Specification	Actual	Comments
	Pump Discharge Pressure	10000 kPa (1450 psi)
	Pilot Pressure	4000 ± 200 kPa (580 ± 29 psi)

( 1 )

N = Normal, M = Monitor, A = Action

Pump Control Valve

ReferenceRefer to Testing and Adjusting, UENR4646, "Pump Control Valve (Implement, Steering) - Test and Adjust" for more detail on the following tests.

Table 13

Status (1)	Description	Specification	Actual	Comments
	Margin Pressure Test	14.3 ± 1.9 Seconds
	Margin Pressure Adjustment	2100 ± 100 kPa (305 ± 15 psi)
	Signal Pressure Adjustment	24000 ± 500 kPa (3450 ± 100 psi)

( 1 )

N = Normal, M = Monitor, A = Action

Disk Pack Preload for Circle Drive

ReferenceRefer to Testing and Adjusting, UENR4646, "Disc Pack Preload for Circle Drive - Adjust" for more detail on the following tests.

Table 14

Status (1)	Description	Specification	Actual	Comments
	Spring Deflection	2.30 ± 0.25 mm (0.091 ± 0.010 inch)
	Bearing Preload	0.00 to 0.13 mm (0.00 to 0.005 inch)

( 1 )

N = Normal, M = Monitor, A = Action

Hydraulic Brake and Fan System

ReferenceRefer to Testing and Adjusting, UENR4648 for more detail on the following tests.

Table 15

Status (1)	Description	Specification	Actual	Comments
	High Pressure Cutoff (High Idle)	21500 ± 200 kPa (3118 ± 29 psi)
	Margin Pressure (High Idle)	1800 kPa (260 psi)
	Fan Speed (Maximum)	1650 ± 50

( 1 )

N = Normal, M = Monitor, A = Action

Air System

Air Compressor Governor Test

ReferenceRefer to Testing & Adjusting, UENR4650, "Governor (Air Compressor) - Test and Adjust" for more detail on the following test.

Table 16

Status (1)	Description	Specification	Actual	Comments
	Cut IN, Pressure	793 kPa (115 psi)
	Cut OUT, Pressure	1000 ± 34 kPa (145 ± 5 psi)

( 1 )

N = Normal, M = Monitor, A = Action

Power Train System

ReferenceRefer to Testing & Adjusting, UENR4640, "Power Train Charge System Pressure - Test and Adjust" for more detail on the following test.

Power Train Charge System Pressure

Table 17

Status (1)	Description	Specification	Actual	Comments
	Charge Pressure @ High Idle	2750 ± 50 kPa (400 ± 10 psi)

( 1 )

N = Normal, M = Monitor, A = Action

Transmission Lubrication Oil Test

ReferenceRefer to Testing & Adjusting, UENR4640, "Transmission Lubrication Oil Pressure - Test" for more detail on the following test.

Table 18

Status (1)	Description	Specification	Actual	Comments
	Neutral (Low Idle with Differential Lock ON)	14 kPa (2 psi)
	Neutral (High Idle with Differential Lock ON)	350 kPa (50 psi)
	First Gear Forward (Low Idle with Differential Lock ON)	6 kPa (1 psi)
	First Gear Forward (High Idle with Differential Lock ON)	135 kPa (20 psi)
	Neutral (Low Idle with Differential Lock OFF)	14 kPa (2 psi)
	Neutral (High Idle with Differential Lock OFF)	350 kPa (50 psi)
	First Gear Forward (Low Idle with Differential Lock OFF)	6 kPa (1 psi)
	First Gear Forward (High Idle with Differential Lock OFF)	135 kPa (20 psi)

( 1 )

N = Normal, M = Monitor, A = Action

Transmission Pressure Tests

ReferenceRefer to Testing & Adjusting, UENR4640, "Transmission Pressures - Test and Adjust" for more detail on the following test.

Table 19

Status (1)	Description	Specification	Actual	Comments
	Test Port 1 (First Gear Forward)	2750 ± 50 kPa (400 ± 10 psi)
	Test Port 2 (Second Gear Forward)	2750 ± 50 kPa (400 ± 10 psi)
	Test Port 3 (First Gear Reverse)	2750 ± 50 kPa (400 ± 10 psi)
	Test Port 4 (Second Gear Forward)	2750 ± 50 kPa (400 ± 10 psi)
	Test Port 5 (Neutral)	2750 ± 50 kPa (400 ± 10 psi)
	Test Port 6 (First Gear Forward)	2750 ± 50 kPa (400 ± 10 psi)
	Test Port 6 (First Gear Reverse)	2750 ± 50 kPa (400 ± 10 psi)
	Test Port 7 (First Gear Forward)	2750 ± 50 kPa (400 ± 10 psi)
	Test Port 7 (Second Gear Forward)	2750 ± 50 kPa (400 ± 10 psi)
	Test Port 7 (First Gear Reverse))	2750 ± 50 kPa (400 ± 10 psi)
	Test Port 8 (Neutral)	2750 ± 50 kPa (400 ± 10 psi)

( 1 )

N = Normal, M = Monitor, A = Action

Differential Lock Pressure

ReferenceRefer to Testing & Adjusting, UENR4640, "Differential Lock Pressure - Check" for more detail on the following test.

Table 20

Status (1)	Description	Specification	Actual	Comments
	Differential Lock Pressure	2750 ± 50 kPa (400 ± 10 psi)

( 1 )

N = Normal, M = Monitor, A = Action

S.O.S

ReferenceRefer to Operation and Maintenance Manual, SEBU9261, "Maintenance Interval Schedule" for more detail on the following test.

Table 21

Status (1)	Description	Obtain	Comments
	Engine Coolant Sample (Level 1)	Every 250 hours
	Engine Coolant Sample (Level 2)	Initial 500 hours then every year
	Engine Oil Sample	Every 500 hours
	Hydraulic Oil Sample	Every 500 hours
	Gear Group (All Wheel Drive)	Every 500 hours
	Transmission/Differential Oil Sample	Every 500 hours
	Tandem Drive Oil Sample	Every 500 hours
	Wheel Bearing Oil Sample (Front)	Every 500 hours

( 1 )

N = Normal, M = Monitor, A = Action